I am having the craziest issue with my internet. This all started about 5-6 days ago.

To get straight to the point, when doing ping tests from CMD, I get frequent time outs. Sometimes its 0% loss, sometimes its 2-3% loss. However, every time a timeout happens, my internet completely stalls. This is extremely troublesome when playing games over Xbox Live as the game will pause right along with the timeouts.

I have Time Warner Cable, 20mbps download/2 up. As far as troubleshooting, you name it... ive done it. We had a level 3 technician (the best TWC has to offer) and he tried everything possible. Checked all the connections, changed modems, checked the connection outside. Not only that, I had someone come today and REPLACE the line in the house. Everything is completely brand new at this point...

But still I get the timeouts, the lag, the "this page cannot load". The timeouts are having an extremely harsh effect. They occur randomly, but often.

The ONLY thing I can think is that there is some off frequency effecting my connection. We just had new neighbors move in. He isnt stealing my internet, ive already checked. But could he have a device that is effecting my signal causing my internet to have frequent pause/lag like this?

Im guessing this is just a problem that cant be fixed? So its just done forever? I dont get it. Where is the smartest networking person in the world? Will he be able to help me? Or is he just gonna shrug his shoulders and say "derp.. i dont know"?

TWC offers coaxil cable internet. Its basically the same you would have for a cable TV.

The MTU stuff sounds interesting, I will be doing research on that right after this post. What do you mean by "lowering it"? Any information on how to do it or how you did it?

Ive also come across something interesting while reading about what MHZ bandwidth you have. From what I understand, this will affect frequency or noise. I wonder if this has to do with the issue? Does anyone have any experience in this field? I feel a little over my head at the moment.

cable modem is a shared medium so the more people on your block that move in and subscribe, the less bandwidth you are going to get (20/2 is just a best effort, no guarantees you'll get that whatsoever) - ESPECIALLY at peak hours like 5pm to midnight.

try speedtest.net and post your results then try bandwidth.com or speakeasy.net or bandwidthplace.com and see if you get similar results

i want to see what your upload speeds are -

also, where are you pinging when you do those ping tests? try pings to multiple destinations and lets see/compare the results here

also, do a "tracert x" where x is the same destination you are using for pings that lose packets

You have a router or switch attached to your modem? I had a linksys wrt120n wireless router that exhibited same symptoms. It also wouldn't forward Apple mdns traffic correctly. Replaced it and my issues went away...